Jonathan Blitzer’s “Crossing Over” chronicles the remarkable life of Claudia Delfín, a forty-seven-year-old transgender woman from El Paso whose reality has been shaped by the U.S.–Mexico border. This collection of photographs provides a chance to delve even deeper into Claudia’s world.

Claudia Delfin has spent her life shuttling between El Paso and Juárez—for a time, under the thick fog of drugs and addiction, as a sex worker and minor gangster. She’s been clean for eight years and now works as a drug counselor for a local nonprofit, hauling addicts out of the same slums where she used to score and delivering them back to life, if they’ll let her.